PURPOSE: To perform an automatic focus adjustment with high stability and high responsiveness, regarding a video camera having an automatic focus adjusting device.

CONSTITUTION: This device has an AF control means 6 which is provided with a 30Hz vibration means 6a vibrating a lens 1d for focus adjustment which is the part of an image pickup lens 1 and has a focus adjusting function by a 30Hz frequency and a modulation means 6b modulating the output of focus signal detection means 5, instructs the direction and the speed that the lens 1d for focus adjustment should be driven and performs an AF control, and a lens driving means 7 driving the electromagnetic driving type voice coil type linear actuator interlocking with the lens 1d for focus adjustment by the output signal of the AF control means 6, vibrates the lens 1d for focus adjustment by 30Hz frequency and determines the driving direction and the driving speed of the lens for focus adjustment.